Keynote lectures are plenary sessions which are scheduled for taking about 45 minutes + 10 minutes for questions.
- Franco Davoli, University of Genoa, Italy
Keynote Lecture 1
Cross-Layer Resource Allocation in Satellite Networks
  Franco Davoli
University of Genoa, Italy
Brief Bio:
Franco Davoli received the "laurea" degree in Electronic Engineering in 1975 from the University of Genoa, Italy. Since 1990 he has been Full Professor of Telecommunication Networks at the University of Genoa, where he is with the Department of Communications, Computer and Systems Science (DIST). From 1989 to 1991 and from 1993 to 1996 he was also with the University of Parma, Italy. His current research interests are in bandwidth allocation, admission control and routing in multiservice networks, wireless mobile and satellite networks and multimedia communications and services. He has co-authored over 250 scientific publications in international journals, book chapters and conference proceedings. He is a member of the Editorial Board of the International Journal of Communication Systems (Wiley) and of the international journal Studies in Informatics and Control, and an Area Editor of Simulation Transactions of the SCS. He has been a guest coeditor of two Special Issues of the European Transactions on Telecommunications and of a Special Issue of the International Journal of Communication Systems. In 2004, he has been the recipient of an Erskine Fellowship from the University of Canterbury, Christchurch, New Zealand, as Visiting Professor. He has been Principal Investigator in a large number of projects and has served in several positions in the Italian National Consortium for Telecommunications (CNIT). He was the Head of the CNIT National Laboratory for Multimedia Communications in Naples in the years 2004-2005. He is currently Vice- President of the CNIT Management Board and coordinates the participation of the Consortium in the SatNEx European Network of Excellence (NoE) and in two other European projects, devoted to Grid infrastructures for measurement and laboratory instrumentation. With DIST, he is currently participating in the INTERMEDIA NoE, focused on home multimedia networking. He is a Senior Member of the IEEE.

In wireless networks, the efficient allocation of potentially scarce resources, like bandwidth and energy, has led to the development of numerous techniques, which attempt to optimize performance, by explicitly considering the interaction across different layer of the protocol stack. By taking into account the presence and the effect of other layers in the design phase of control schemes that act with a certain protocol, a more efficient use of resources can be often obtained. This talk presents an overview of different Cross Layer Radio Resource Management techniques, devoted to dynamic bandwidth allocation in satellite networks, whose interactions span the physical, data link, network and transport layers, in various combinations. A multi-service environment is considered, in the presence of variations in both traffic and channel conditions. At the physical layer, ACM (Adaptive Coding and Modulation) is adopted as fade countermeasure, and its effect on the higher layers is modeled as a bandwidth reduction. Traffic models and methodologies for dynamic bandwidth allocation and performance optimization will be discussed. A few numerical examples will be presented to highlight throughput/fairness tradeoffs for long-lived TCP connections that share multiple channels with different fading depth.